Well we have wandered away from the original subject of this post, the 3 1/2 inch Magnum-Ten!!
To continue with what was posted above, I have a 1903 Shreve & Barber Co., San Francisco, Cal. catalogue which has two pages dedicated to their Selby factory loaded shells, but they don't mention case length on any of their shells. Excelsior was their black powder shell and the 10-gauge load offered was 4 drams and 1 1/8 ounces of shot at $2.20 per hundred. Superior was their lower priced smokeless powder shell and again their 10-gauge load offered was 4 drams of bulk smokeless (E.C., Schultze, Dupont or Hazard) or the equivalent in dense smokeless powder (Ballistite or Laflin & Rand) and 1 1/8 ounces of shot, for $3.00 per hundred. Their best shell was the Challenge and again the load offered was the 4 dram 1 1/8 ounce at $3.40 per hundred. For 1/8 ounce more shot add 10 cents per hundred and for chilled shot add 20 cents per hundred.
Their NPE offerings in 10-gauge brass shells were 2 5/8, 2 3/4, 2 7/8 and 3 inch lengths. In paper hulls for black powder 2 5/8 or 2 7/8 inch. In nitro powder 10-gauge paper hulls they offered 2 3/4, 2 7/8, 3, and 3 1/4 inch lengths.
