@htbridge : RT @immuniweb: #DarkWeb monitoring can be simple and efficient. Pass by our stand 24 during #ISFCongress2019 in Dublin for live demos t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1186924236708839424)

@htbridge : RT @immuniweb: #DarkWeb monitoring can be simple and efficient. Pass by our stand 24 during #ISFCongress2019 in Dublin for live demos t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1188769067181625345)

This appears to be an old postage stamp from the Ottoman Empire, likely from the 1860s, featuring the crescent and star motif.

Origin: Turkey (Ottoman Empire).

Design: Features a crescent and star within an ornate circular design.

Possible Issue Year: Stamps with this design, known as "Duloz" issues, were produced between 1865 and 1876.

Condition: The specific condition and whether it is mint or used would affect its value.

Note:

Isfila 30

January 13 1865

20p Brown

Duloz Postage Due Stamp Type I

Design & Typographed. Poitevin-Paris

@htbridge : RT @immuniweb: Last day at #ISFCongress2019. Today's lottery winner is Savings Banks Group, Finland. Congratulations! #ISF30 t.co/RCOxTjkOqa (via Twitter twitter.com/htbridge/status/1189162769284661248)

@htbridge : RT @immuniweb: Attending #ISFCongress2019 in Dublin after #ISACA50? Don’t miss @ImmuniWeb Team at stand 24 t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1186204688997175298)

@htbridge : RT @immuniweb: Monday at #ISFCongress2019, free lottery with cute gift and more at @ImmuniWeb’s stand 24 #ISF30 today t.co/BaSNiAKHI5 (via Twitter twitter.com/htbridge/status/1188750320177778688)

@htbridge : RT @immuniweb: #ISFCongress2019 is over. Thank you #ISF30, it was a great experience. Also, we would like to thank all our visitors and invite you to our next event @BigDataConfEU. Keep in touch! t.co/MwdpPQLOsM (via Twitter twitter.com/htbridge/status/1189451791974326272)

@htbridge : RT @immuniweb: It’s Friday, and we are on our way to Dublin for #ISFCongress2019 now! See you in the heart of beautiful Ireland! t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1187645236010352645)

@htbridge : RT @immuniweb: #DarkWeb monitoring can be simple and efficient. Pass by our stand 24 during #ISFCongress2019 in Dublin for live demos t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1188438468017307648)

@htbridge : RT @immuniweb: Try your luck at #ISFCongress2019 in Dublin, play FREE lottery and win superb prizes at @ImmuniWeb’s stand 24 t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1188352039908073473)

@htbridge : RT @immuniweb: Busy day here at #ISFCongress2019. We have winners of our FREE lottery. Two ImmuniWeb Discovery certificates $1188 value each go to @Bell Canada and @RBS_Help Royal Bank of Scotland. Congratulations! #ISF30 t.co/f3fAoipkWt (via Twitter twitter.com/htbridge/status/1188838985730162689)

@htbridge : RT @immuniweb: How to reduce the complexity and costs of #cybersecurity? Interactive demos at our stand 24 during #ISFCongress2019 in Dublin t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1186561430272630784)

@htbridge : RT @immuniweb: Sunday at #ISFCongress2019, we are fully equipped to welcome you at our stand 24 #ISF30 today t.co/H0mXPZTosB (via Twitter twitter.com/htbridge/status/1188393679880216577)

@htbridge : RT @immuniweb: Rapid visibility of your digital assets and risk exposure in just a few clicks? Watch live demos at #ISFCongress2019 on stand 24 t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1189096594508902400)

@htbridge : RT @immuniweb: Rapid visibility of your digital assets and risk exposure in just a few clicks? Watch live demos at #ISFCongress2019 on stand 24 t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1187291982193782784)

@htbridge : RT @immuniweb: Rapid visibility of your digital assets and risk exposure in just a few clicks? Watch live demos at #ISFCongress2019 on stand 24 t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1188485809302732800)

@htbridge : RT @immuniweb: How to reduce the complexity and costs of #cybersecurity? Interactive demos at our stand 24 during #ISFCongress2019 in Dublin t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1188416292643983360)

@htbridge : RT @immuniweb: Busy day here at #ISFCongress2019. We have a winner of our FREE lottery. ImmuniWeb Discovery gift certificate $1188 value goes to @RBS_Help Royal Bank of Scotland. Congratulations! #ISF30 t.co/cqcR0IS43B (via Twitter twitter.com/htbridge/status/1188846995600883713)

@htbridge : RT @immuniweb: How to reduce the complexity and costs of #cybersecurity? Interactive demos at our stand 24 during #ISFCongress2019 in Dublin t.co/MwdpPQLOsM #ISF30 (via Twitter twitter.com/htbridge/status/1188731923054546944)

@htbridge : RT @immuniweb: Sunday at #ISFCongress2019, we are fully equipped to welcome you at our stand 24 #ISF30 today t.co/P1uYZrKLva (via Twitter twitter.com/htbridge/status/1188384433012789249)