Pictures:
* Gallery: A collection of pictures displayed together, often in a museum or art gallery.
* Portfolio: A collection of an artist's or photographer's work.
* Album: A collection of pictures bound together in a book.
* Display: A collection of pictures presented for viewing.
* Collection: A general term for a group of pictures gathered together.
Stamps:
* Collection: A group of stamps gathered together by a collector.
* Set: A collection of stamps with a common theme or issue.
* Sheet: A collection of stamps printed together on a single sheet of paper.
* Album: A book designed to hold and organize a stamp collection.
* Inventory: A list or record of stamps in a collection.