Here is the page for these fine $10 to $11 smallbore hammer guns from the 1912 Schoverling, Daly & Gales catalogue --
Do be advised that in the day these guns were being sold the "standard" 28-gauge load was put up in a 2 1/2 inch case and contained 1 3/4 drams of bulk, or drams equiv. of dense, smokeless powder and 5/8 ounce of shot. The 3/4 ounce progressive burning powder Super-X load in a 2 7/8 inch case came on the market in the 1931/32 time frame.
Our buddies at RST do put up a lovely little 5/8 ounce 2 1/2 inch 28-gauge load.
My old friend the late Henry Thomas of Federal Oak Farm, Charles County, Maryland, gave me his Frather's rather similar old Belgian-made 28-gauge marked "Richard". It graced my gun room for a number of years, but before I left the area, I passed it along with Henry's 1938-vintage 20-gauge Fox-Sterlingworth to a younger Southern Maryland bird hunter and Setter man.