I think I was 14,,maybe 15,,and from a gunshop I bought an as-new condition Mauser Model 1893 (Modelo 1893) rifle made by Loewe/Berlin. Just a factory original perfect condition rifle and it came with the bayonet. Cal 7mm.
They had a crate of them,,just pick out the one you wanted.
Rifle with the bayonet was $14.99 as I recall,,They had ammo at $1/box 20rds. It was Remington mfg FMJ, in their original 2-piece cardboard boxes with the dark red lable on them. Pricey stuff for a kid,,so I bought 2 boxes as I recall.
It was a lot of money at the time,,I almost wimped out and bought the #4 Enfield for $11.99
First pistol was a Ruger Standard model with the short Bbl. $41 and change. A recent price hike caught me for the extra. They had been $37.50
Don't really recall the first shotgun that I bought myself. I had a couple that were hand me downs and bought for guns. I think it was an Iver Johnson Champion single shot 12ga for $10. A yard sale buy on a Sat. morning after just getting my license IIRC.
It already had a 20" cut bbl but a nice job complete w/ bead. I hunted with that one for years and kept it till the 80's.
The others are gone too.