WA Western Australia Australian States Goldfields cycle mail local stamps with imperf error, fault

These local stamps were used on the Coolgardie Goldfields because there was no post office. Small items were carried by bicycle and large items were carried by camel. The One shilling is a rare Imperforate on one side variety but has slight thins on the stamp, as is often found. The 2 shilling is fine. Sent with Standard Delivery - Registered.