3/8 shimano Shifters wanted

[Shropshire65LW]

Mountain Bike Shifters wanted .must be clean and working on a budget looking for something to go on a older bike
STX im told would be the best option but I will consider other

 

[DCBassman]

Got some EF-28s in the for-sale forum somewhere, the lh is used, the rh is NOS, complete with cable inner.