C Clasp

Used by the Victorians and into the 20th century as well. Photo courtesy of: momtoahsey

C Clasp

Another example. Photo courtesy of: momtoahsey

C Clasp

Another example. Notice how the pin stem extends beyond the edge of the brooch. This is often found in Victorian jewelry. Photo courtesy of: momtoahsey

C Clasp

Notice how the clasp is wider than the other examples. Photo courtesy of: momtoahsey

C "Locking" Clasp

Late Victorian locking clasp. You push up and it locks in place. It does not swivel. Photo courtesy of: momtoahsey

C Clasp With Fold Over Locking Mechanism

Circa 1920s (in America). Found earlier on older European jewelry. Photo courtesy of: gelatogrll

Older Hinge With Older C Clasp

Late Victorian (1890's) through early 20th century. Photo courtesy of: momtoahsey

Older Hinge With Older C Clasp

Late Victorian (1890's) through early 20th century. Photo courtesy of: momtoahsey

Older Hinge With Older C Clasp

Late Victorian (1890's) through early 20th century. Photo courtesy of: momtoahsey

Safety Pin Clasp

Used by the Victorians and into the 20th century as well. Photo courtesy of: rumor_has_it

Trombone Clasp

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Called a "trombone clasp" because you pulled the end piece in and out to secure the pin stem. This pictures shows it closed. Photo courtesy of: rumor_has_it

Trombone Clasp

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Clasp mechanism pulled out. Photo courtesy of: rumor_has_it

Trombone Clasp

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Pin stem detached from clasp. Photo courtesy of: rumor_has_it

Tube Hinge

Pin hinge used on brooches during the Victorian age and into the early 20th century. Photo courtesy of: momtoahsey

Tube Hinge

Another example. Photo courtesy of: momtoahsey