450Fuller: Pardon my slow reply been busy.
I hope you do sell your 348's but I am not in the market myself as of now.
I do have an extensive collection of original Winchester "Grizzly" box ammunition.
Including a mint perfect box of 348 ammo and a "nice" box of "Grizzly" 348 along with others in 257 Roberts, 300 Savage, 35 Remington (these are very rare/hard to find in Grizzly Boxes), 303 Savage (again extremely rare nowadays), 300 H&H Magnum and a pristine pair of Grizzly boxed of 375 H&H Magnum.
I started my Winchester boxed ammo collecting back in 1967 (54 years ago!) and very much enjoyed collecting and upgrading my collection of full minty Winchester ammo boxes.
I am guessing I have 65 minty boxes of older Winchester ammo in MANY calibers including the older red, blue and yellow boxes in 219 Zipper, 257 Roberts, 220 Swift, 22 Hornet, 32-40, 218 Bee, 7m/m Mauser plus many more in the common calibers.
But my "prize" box of Winchester ammo is a mint condition (both the box AND the ammo!) box of "Wimbledon Cup - Special Match" 30/06 ammo. The box is marked "180 grain KopperKlad bullets"- "for single loading only"!
And the red, blue and yellow box is also marked "For Use in Winchester Model 54's"!
So this box of ammo is nearing 100 years of age!
The box also depicts the loaded cartridge and shows the cartridge cases are depicted as "nickel plated"!
I have never seen another box of the Model 54 Wimbledon Cup - Special Match bullets!
The VarmintWife would have NO idea what these cartridges are worth so when I attain age 75 I promised myself to start selling these beautifully boxed munitions off.
Collecting old ammunition has been a worthy and profitable venture for me over the years.
Hold into the wind