I need help with some initials(?) on a small Spanish bronze cannon barrel. Provenance: Complete cannon sent from US Army officer who captured it in the Philippines ca. 1899, to Sec. of War Elihu Root, then came down through family until I acquired it from them in 1980's. It came with a huge, heavy tropical hardwood carriage that's now in storage and unfortunately I don't have a good photo to post here, but it wouldn't add any to the discussion.
My question, which has bugged me for about 25 years: What's the meaning of the large, engraved initials "A.M.G." on top of the barrel? Note that the letters are inverted compared to the "normal" cannon markings which include the weight, 73 3/4 Spanish pounds, and the mark for "Real" (Royal) which is an engraved "R." There are no other marks on the barrel.
The piece is typical of small Spanish cannon cast in the Philippines for the Spanish monarchy. Tube probably dates from the18th or early 19th C.
Dimensions of barrel:
Overall length about 30 inches.
Weight about 80 lbs.
Bore: 2 inches ("one pounder" size)
Breech diameter: 5.5 inches
The barrel is chambered so it technically a howitzer. The chamber at the rear of the bore is about 1.5 in. diameter x 2 in. deep.
One possibility I had considered is that the "A.M.G." are the initials of the founder. Spanish cannon with only initials of the founder are unknown so I don't place much store in that theory.
Another possibility is that A.M.G. is an abbreviation from the Catholic religion. Both Spanish Army and Navy people were generally deeply religious Catholics, with chapels and shrines and officials of the Church aboard their ships, in their Army camps, etc. This theory comes from the description of another cannon captured in the Philippines, which I saw pictured and described in the 1929 catalog of the Ordnance Museum at West Point (USMA.) Item no. 7573, pp. 208, "Fig. 244, 1 in. bronze gun with charge and carriage, Inscribed 'Ave Maria Gratia Plena.' Captured from Philippine insurgents at Santa Cruz, Laguna Province, Luzon, P.I., April 10, 1899, by a dismounted squadron of the 4th. US Cavalry...."
What do you think the "A.M.G." stands for?