Antiquities is a small set with 85 cards. Five of the (non-basic) lands have four different art variations, so the set can also be counted as 100 cards. There are many different rarities represented depending on the number of times each card is printed on the sheets. The rarities between different art variations of the same card may be different. The printing was done in Belgium.
Antiquities was sold in 8 card booster packs. Booster boxes had 60 packs.
Antiquities uses striped collation with 11 × 11 sheets. There are two sheets, an uncommon sheet and a common sheet. But the actually rarity of a card doesn't just depend on which sheet it is printed on, it also depends on how many times the card is printed on that sheet. For the purposes of describing the collation, rarity just refers to the sheet the card is printed on. Packs can be either front-facing or back-facing and the uncommons can come before or after the commons.
|6 Commons||2 Uncommons|
|2 Uncommons||6 Commons|
Pictures of both Antiquities sheets exist. 
The common sheet contains most cards either one time or four times. The exceptions are the Urza land cycle which have some variations that are printed two times, and are printed five or six times altogether. Also note that Mishra's Factory and Strip Mine have both common and uncommon art variations.
The uncommon sheet contains cards either one, two, or three times. Tawnos's Weaponry has a variant printing where the circle behind the mana symbol in the text box is misplaced.  It is currently not known if this is specific to a certain printing, a certain location on the print sheet, or both.
 The "Compilation of Uncut Sheets" thread on the Magic Librarities Forum has pictures of both sheets.
 The variant of Tawnos's Weaponry is catalogued on Scryfall.