The top one was called the Costume definitives and were issued between 1948/52 and most were reissued in 1958 on white gum and paper. You are missing quite a few
The other one was called "Beautiful Austria" series issued between 1973/83.
Stampboylife your local library likely has a set of Scott Catlogues you can use to figure out which stamps from a set you have and which are missing. Cataloging your stamps this way also provides the opportunity to document which Scott numbers are missing so you can more easily seek to find them.
Where I live, the libraries always have both a reference set of Scott's and a circulating set, so I have frequently checked out a few of the volumes so I can work at home.
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