My father took more than 1000 shots with his trusty Kodak 35 (standard issue for all WWII recon and other photographers).
His shots spanned the 40s to 70s. I tried out batches at a few other labs over the years ... with mediocre result. The technology has improved now and the job Digmypics does is the best you will get at a reasonable cost. They have scanned my entire photo library ... slides 50 to 70 years old! The results are better than the originals very professional and helpful staff. All slides were scanned 2500dpi jpg ... after a TIFF test that showed no diff in results. AAA+ in this biz.