Description from record TQ 76 NE 135 :
(TQ 7577 6912) SAM No. 218 [Queen's Stairs: scheduled]. (1) A landing stage at the foot of a flight of steps alongside the Assistant Queens Harbour Masters Office. At the top of the stairs is a wrought iron overthrow, possibly late 18th centruy. It is known that a landing stage existed here in 1755. The date of the present structure is unknown. (2)

The following text is from the original listed building designation:
TQ 76 NE CHATHAM ANCHOR WHARF
762-1/8/33 Queen's Stairs with overthrow
arch
24.5.71
GV II
Overthrow and steps to landing stage. Probably late C18. Wrought-iron overthrow. Depressed iron arch has scrolled decoration and a central square lantern. Set above the head of the steps of the landing stage.
Listing NGR: TQ7578369108 (3)

<1> English Heritage 1:1250 SAM location maplet (OS Card Reference). SKE41612.

<2> English Heritage SAM Record Description (J Coad) (OS Card Reference). SKE41626.

<3> English Heritage, List of Buildings of Special Architectural or Historic Interest (Map). SKE16160.