I have accumulated eight older albums over the years and finally decided to transfer the contents to my own albums. I chose Hungary to work on first because I had about two dozen loose stamps from that country.
I ended two months worth of work today

with 95 pages (I make my own) of stamps in seven categories: Air Post, Air Post Semi-postal, Official, Parcel Post, Postage, Postage Due and Registration. There were 295 stamps spanning 104 years (1882-1985). There was nothing of any value

, the highest cataloging out at $1.40 per my 1999 Scott.
Several of the later issues, the 1960s-1970s, appear to be CTOs, having the typical quarter-circle cancellation in one corner, but they are interesting to keep.
Just for chuckles, I ran a Pareto analysis of the distribution of the number of stamps (295) over the number of years (104) and found that 80% of the stamps are accounted for by 16% of the years. This is four points lower than the expected number and means the distribution is narrower than standard. This undoubtedly reflects the bias of the various collectors who assembled the eight albums.
There was a significant population of Postage Dues, but that was OK because I'm partial to BOB stamps, anyway.
I have 58 duplicates available, if anyone wants them. No charge. I hate to throw any stamp away.
Donald