Request for Evaluation

Although we have changed the lettering style over the years based on improvements in manufacturing methods, it may also vary from size to size of product. As a result, visual differences in lettering are not always conclusive. However, there are additional product features that can be used to screen Crosby product for authenticity.

If you feel there is a question of whether a product is genuine Crosby, please e-mail Crosby Group Engineering at with a description of the product, capacity, size and why the product is suspected to be counterfeit. Attach a photograph of the product if possible, or send a sample to:

Attn: Engineering Dept.
2801 Dawson Road
Tulsa, OK 74110

Please complete and include the Request for Evaluation form when sending a sample.