Thanks for the info - truth be known I bought 4 large priority mail boxes of worldwide/us stamps on
ebay. I only collect USA and sell the worldwide to get funds to buy more USA. Those worldwide stamps seem famous for having the same stamp design but slight differences in many issues of the same thing= reminds me of our USA Washington/Franklin stamps. I had to study a bit about paper today to see what I had here, none of these stamps seem valuable out of the thousands of glassy envelopes in the lot they have been well picked over. Most valuable thing found today in stamp lot I bought-knowledge..... thanks.