Geffrey Whitney, A choice of emblemes (Leiden, 1586)
Janus is holding a sceptre and a mirror and simultaneously looking into th epast and the future

Respice, & prospiceLatin
Look backwards and forwards
23A31023A33025G11 groups of trees25G3(+211) trees (+ stump, stub)25H11 mountains25I3 farm or solitary house in landscape26A clouds31A2513(+933) arm stretched sidewards (+ holding something)31A2624(+51) standing on one leg, the other leg held sideways (+ standing)31A31 sight, looking (one of the five senses)31A44(+41) anthropomorphic beings (legendary or not) with heads, limbs or organs of an abnormal number, in abnormal places or of an abnormal shape) (+ head, face)31A511 mirror31A534 beard31D14 adult man41D233(+81) gear for legs and feet (+ men's clothes)44B192 sceptre, staff (symbol of sovereignty)45C13(SWORD) hacking and thrusting weapons: sword45C22 armour51I5(+4) Middle; 'Mezo' (Ripa) (+ emblematical representation of concept)86(RESPICE ET PROSPICE) proverbs, sayings, etc. (RESPICE ET PROSPICE)96A12 (story of) Janus96A127:45A0 (story of) Janus - specific aspects, allegorical aspects, as patron of❧?96A128(JANUS' HEAD) Janus' head, two-faced headRecord ID: embstma_1667_emblem114
This emblem on the Iconclass site: https://iconclass.org/view/embstma_1667_emblem114
Copy: University Library, Glasgow, Stirling Maxwell 1667