I have listed 2 excellent collections on eBay
. The 1st is a group of small countries on Scott Vintage pages with strength in Memel, Saar, Danzig etc.
The 2nd is a 2 volume French Colonies collection with great Senegal and all the pages for 51 colonies. The list of included colonies is at the of the listing. Both these offering would be perfect for continuation.https://www.ebay.com/itm/164057374983https://www.ebay.com/itm/362898428384
While there check out my other items,