H114 in D on Ebay, looks reasonable for the price, BUT be aware: it has a lot of rusty reeds & needs a job ... :
http://www.ebay.com/itm/HOHNER-BUTTON-ACCORDION-HA-114-MELODEON-KEY-D-/261018069134?pt=LH_DefaultDomain_0&hash=item3cc5e3a88e- Nout

I'd take it for the current $2.65 but I would not want to pay the $35 shipping.

This has "H" reeds.. the good ones prior to the "T" reeds..

I like the borer beetle holes...