There exists a P0 which predates the above-mentioned P0s. Living in Japan, ones sees them occasionally but even here they are quite rare. The two look exactly alike - I do not know what makes the P0s "better." A P0 usually goes for about $8-10k and a P0s goes for about $11-13k. In Japan, they are considered to be one of the best transports, if not THE best, ever made.
One can see a picture of an Esoteric/TEAC P0 transport (with its top off - the top is flat and has the same rough texture as the rest of the body) about half way down this page on the left hand side.
One can see a picture of an Esoteric/TEAC P0 transport (with its top off - the top is flat and has the same rough texture as the rest of the body) about half way down this page on the left hand side.