Greetings from South Africa

Welcome to the group!

A question - are you cataloging with the intent to sell or for a different reason? In any case, please know that there is a VAST chasm between catalog value and possible cash yield.

To give you a feel for current prices, I am currently selling off my duplicates and a few collections on EBay for a few dollars per full stockpage or about 5 - 10% for used / mint hinged. MNH sells higher and they actually SELL at those prices so that’s a real life indicator for current market value. Ignore minimum value items - they are only worth a penny or less.   Individual, popular better items with higher catalog values (three figures and up) may garner better offers from dealers, but then what do you do with the remainder? That is called “cherry picking”. My point is that an offer of only 5% or thereabouts of catalog from a reputable dealer is not unreasonable for buying an entire typical stamp collection.

Quality is a HUGE factor, too. Every collection is unique and may hold treasures or may be at the other end of the spectrum. Pictures help.

If you have questions, feel free to ask.

A quick way to catalog is skip everything low priced, say under 50c catalog or some other value - just count them - only enter the data for better items. That can save you hours of work. Also-  list MNH sets as one item, not individual stamps. They always sell as sets anyways.