Anchor for mast and falling derrick? boom - can anyone ID this?

[QTHNH]

At a local HAM shack, we have this anchor mount for what looks like a 4" diameter mast and a smaller diameter ?falling derrick? boom? The markings on this are:

Craig Machine Danvers MA
CMA-102-D for the larger mast mount
CMA-103-D for the smaller diameter mount

Can anyone ID this and its original purpose (marine/ship hardware?)

 

[FPrice]

"Automation Machinery Designed and Built for the Plastics Industry​

Craig Machinery designs and builds automation machinery for the plastic industry. From small fixtures to large multi-head rotary indexing table systems, our experts assisted manufacturers from various industries including the medical, automotive, consumer goods and more! Our goal is to provide our customers with the best service and high-quality products."

Looks like they are still in business, wonder if they could answer your question?

Automation Machinery Design - FANUC Authorized System Integrator | Craig Machinery & Design

Craig Machinery & Design is a FANUC Authorized System Integrator, specializing in automation machinery design for the plastic industry. Our machines and systems include Ultrasonic Welding, Robot Cells, Assembly Automation, and more. Click now!

craigmachinery.com

OOPS!

Another company that fled to Kentucky?

 

[QTHNH]

Thanks for the pointer. I found them in my search - no intersection with MA or type of manufacturing, so I think they only share "Craig" in common.