Plaque says its a Gilbert & Barker Model T-105 -334 TG-524376

Pump was purchased refurbished in early 2000

I can't move the pump so pictures of the back were a little difficult to take. I am more than happy to additional pictures; just let me know.
Thanks

1-IMG_9720.JPG2-IMG_9729.JPG3-IMG_9730.JPG12-IMG_9732.JPG
Back side of Pump