I can remember a person at our gun club saying that if you can prepare a list all the guns you own from memory, then you don’t own enough. I doubt any collector of firearms would be counted among those who had a deficient inventory.
I’m blessed-or maybe cursed with memory. I can give the serial no of most of my guns from memory. If you nave a 03-A3 3433120, it’s my old one, I sold it in 1980. I have 02029B70 in my safe as well.
I can also recall all of my high school girlfriends phone numbers and I’ll be 61 in the spring.