The following text is from the original listed building designation:

GILLINGHAM
TQ86SW MIERS COURT ROAD, Meresborough 686-1/10/85 (South side) 21/12/73 Well house opposite Miers Court (Miers Court not included) (Formerly Listed as: MIERS COURT ROAD, Rainham (North West side) Well house opposite Miers Court)
II
Well house. C18-19. Timber-frame and thatched hipped roof. E spindle with a drum at the top, and braced arm for a horse, and 4 W posts for the winding wheel over the well which is capped by a stone flag. A rare and unusual surviving example of this type. Miers Court is not included.
Listing NGR: TQ8214365768 (3)

Description from record TQ 86 SW 24:
[TQ 813 645] Horse Gin. (1)

<1> The Ind Arch of SE Eng 1978 52 (AJ Haselfoot) (OS Card Reference). SKE50372.

<2> National Record of Industrial Monuments (NRIM): Index Cards (Index). SKE53912.

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