The physical enclosure indicator signals a combining of the item just prior (the outer symbol) with the item immediately following it (the inner symbol), where "item" is as defined in Section 11.4.1.

Refer to: Guidelines for Technical Material, Part 14.3, of Shape and Composite Symbols, for superposition, horizontal juxtaposition and vertical juxtaposition of print symbols.

All shaft symbols can be elongated by repetition, with one cell for a short shaft, two for a medium shaft and three for a long shaft. The shaft symbols are placed between the opening and closing arrow indicators.

Arrows with non-standard tips

Dots 1235 regular barb, full, in line of direction

Dots 2456 regular barb, full, counter to line of direction

If an arrow has unusual tips, decide which is the head before you choose the direction of your closing indicator.

Note: The tip(s) and shaft segment(s) are transcribed between the opening and closing indicators. These items are expressed in logical order, that is starting with the arrow tail and progressing towards the head, even if that runs counter to the physical order (as in the case of a left pointing arrow).

Less common arrows can also be indicated in braille.

Refer to: Guidelines for Technical Material, Part 13, Arrows, for the treatment of:

• arrows with shafts which are diagonal, curved or dotted;

• arrows with tips which are half barbed, curved or straight; and

• equilibrium arrows that occur in Chemistry.