Old teashops in Hong Kong often carried their own mix of broken cakes. After some period of traditional storage, they would break the cakes up to air out and sell loose as chunks.
This appears to be a mix of 7542 and 7532 cakes. The storage has been good - traditional storage done properly, transforming these raw puerh teas into a deep rich experience without developing any unpleasant flavours or mould.
It's thick in the mouth, smooth and grounding, a very nice HK style tea at a fraction of the price of whole cakes of this period.
