The Large 5D variety is considerably more rare than the Small 5D variety. It has appeared only two-thirds as often at auction as the Small 5D variety and this ratio is a fairly accirate indicator of the relative rarity of the two varieties. My estimate of the number of existing specimens would be in the neighborhood of 30-35 pieces, most of them in the EF-AU range. Mint state examples are rare and choice or gem quality specimens are extremely rare.