Special large safety pins were used on cloth diapers. They stayed closed and did not accidentally come open.
Set of 5 MamaBear - Prefold/Fitted Hybrid One Size Fits All Quick Dry – MamaBearBabyWear
Why You Shouldn't Be Afraid to Cloth Diaper: The Pros and Cons
SAFETY PIN BROOCHES-- Plastic Head Newborn Locking Pin--You can also use them for crafts, baby shower invitations and games, jewelry, laundry pin.
50pcs Safety Diapers Baby Diaper Pin Baby Safety Pin Clothes Safety Pin Large Plastic Brooch Diaper Pin
50 Pcs decorative diaper pin Safety Pin Brooches Clothes Safety Pin Diapers
50pcs Safety Diapers Baby Diaper Pin Baby Safety Pin Clothes Safety Pin Large Plastic Brooch Diaper Pin : Baby
A Brief History of Cloth Diapers
Dritz-Baby Safe Diaper Pins: White. These curved, stainless steel pins feature plastic safety caps perfect for diapers. This package contains four 2-1/8 inch long baby safe diaper pins. Imported.
Dritz Baby Safe Diaper Pins, Pink - 4 count
Dritz Baby Safe Diaper Pins, 4 Piece Package, 2 Blue 2 Pink, Slightly Curved With Safety Caps for Cloth Diapers, Stainless Steel Plastic
Babies R Us Diapering for Kids
50 Pieces Diaper Pins Baby Safety Pins Head Cloth with Locking Closures Stainless Steel Nappy Pins
I think they are a Bear, they are pink, but one has turned kinda peachy colored. These are from the 70's.
Vintage Baby Diaper Pins
BABY DIAPER PINS Safety Pin Lock Mixed Variety 12 PCS Cat Duck Bird Elephant $8.99 - PicClick