Hi Declan. As many have already stated, yours is indeed an Arpeggio made by Victoria. I have had 2 Bugari Gold Plus 288 accordions (superb!) and also a Beltuna Alpstar IV Swiss Chocolate model. Great accordion, but limited. Recently I got a used Arpeggio. Pretty identical to yours, except mine is a piano keyboard 19 3/8 ". Unlike the Bugari which had 2 Cassottos, this one has a Sordina. First time I ever tried one, and I like it much better! It saves weight, while providing a multitude of sounds, from soft mellow bassoon to a bright wet musette and about everything in between.
The LMMM reeds, while Tipo-a-Mano, are extremely responsive, even in bassoon mode, which was an unexpected delight. This accordion gives me the versatility to play everything on one box - American standards, Italian / Greek, Polkas, French Musettes, etc. The more I play it, the more I appreciate it. It may not have the "Guts" that the Bugari had (Binci Handmade reeds) but it does have a lot of heart! Versatile enough for smaller venues, and still plenty loud for both Polka bands I belong to.
It's probably about 15-20 years old, and the only downside is that a few of the bass buttons clack
(IF ANYONE KNOWS HOW TO FIX THIS, PLEASE ADVISE).
Here are some pictures of my accordions ( I no longer have the Bugari or Beltuna)
You've got a fine accordion, Declan, I hope you are enjoying yours as much as I enjoy mine!
P.S. If I had it to do over, I would definitely have gone with a chromatic rather than piano accordion
Who knew?!