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NickHalf of Mastro's descriptions remind me of bad 1920s sportswriting. Step away from the thesaurus, and just tell me about the lot.
As far as the pictorial work and the physical catalog quality, I find it hard to rank any one major auction house ahead of the others.
As to catalog vs. website, my practice is to read the catalog when I get it, making notes of which lots I may want to follow up on, and use the website for bidding purposes and for further investigation on lots that interest me. They are complementary in my mind.