Lyra Button Accordeon 1920s White

This is a vintage one row button accordeon, made in Germany by Lyra. The exact date is unknown but likely to be from around the 1920s. It is painted white with blue flowers and blue tortoiseshell edging. The inside of the bellows are a pink and white pattern. The condition is not great, some of the edging has flaked off and the paint is a bit worn but it still plays ok and all of the reeds work. I can't play the instrument though hence there isn't a video link.  It has 10 melody buttons and 2 bass buttons, plus an extra button for allowing air into the bellows. IT would be of interest to a collector or restorer.