I have been told creating multiple inventories was a waste of time, and regardless what people had said that the time used is time invested. This robbery is evidence that multiple inventories are kept, especially if you own irreplaceable stamps. Every stamp I collect is scanned and listed in the inventory.
I two have very valuable stamps, and there is always that chance some b...... will help himself to them.
Here are samples of the multiple inventories I have, it has taken many years to build up the inventory (the blue square with red writing means the stamp has yet to be bought).
Click image to enlarge it.
Text inventory from "A" to "U" (the "**" denotes MUH)
Image inventory of some of the specialised stamp in my possession


An example of the full collection with detailed ACSC catalogue numbers and detailed notes of the stamp
If any stamps go missing, I will be onto it like Sherlock Holmes and will be able to give Police and stamp shops every detail of the stamps missing, especially the certification numbers of the certificates.
It is tedious but it does pay off at the end.
Rob