A one-off collection of separately published works bound together into a single volume. Often bound for a specific collector or patron, the volume is unique and not duplicated for distribution by a publisher. See Nonce Collection / Nonce Volume.
The first and second images show a Sammelband bound for Ahasverus Fritsch and comprised of 10 tracts on sins, Nuremberg 1684-1685. The third and fourth images show a Sammelband bound for João Pinheiro Chagas, the first democratic Prime Minister of Portugal, and comprised primarily of political and, oddly, astronomical pamphlets. The fifth, sixth, and seventh images show a Sammelband bound for Martin J. Buerger and containing 14 of his own offprints on the topic of X-Ray Crystallography.