![](https://res.cloudinary.com/mitmuseum/image/upload/t_800/media-internal/HH.6.186.jpg)
Sheave for 3/4" block
![](https://res.cloudinary.com/mitmuseum/image/upload/t_800/media-internal/HH.2.03177B.jpg)
Description
A record of casting production for pattern number 3177. No pattern sketch on recto. Inscription on recto reads "Dr. No.74-4 - 74-68". See verso. Inscription on verso under "Sent To" indicates"Grinnell Co" of Providence, RI.
Related organizations
![](https://res.cloudinary.com/mitmuseum/image/upload/t_800/media-internal/HH.6.186.jpg)