Here is a Sovereign of the Seas 1637 flag set. The red/gold flag matches the one shown in the model from LB1's link.
However, it doesn't match the one shown in the stamp. I believe the red/gold flag in the stamp may have been simplified because of resolution. Here is another flag set for the Sovereign of the Seas. The red/gold flag in this set seems to match the one in the stamp a little better. However, I cannot find a specific "official" name list of the flags shown in the set.
Thanks for the contributions guys! Some great links, and images, have to agree with khj, the lower image I think is the one and described as either "coat of arms" or "emblem" whatever that means.
Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Stamp Community assumes no liability for errors. Copyright 2005 - 2026 Stamp Community Family - All rights reserved worldwide. Use of any images or content on this website without prior written permission of Stamp Community or the original lender is strictly prohibited. Privacy Policy / Terms of UseAdvertise Here