Silva Terra Expedition S Mirror Compass, model 38243

Silva Terra Expedition S is a mirror sighting compass for map navigation and taking bearings. Its rotating housing, map scales and detachable ruler lanyard are aimed at experienced hikers, while its recycled-plastic and hemp-fibre construction is a distinctive material choice.

At a glance

Mirror sighting design lets the user view the compass dial and background together while aligning a reference point.
The base plate includes millimetre map measurement and scales of 1:50k, 1:25k and 1:24k.
A 45-degree mirror-sighting aid, luminous markings and a detachable scale lanyard are described for the compass.
The lid and graduation ring use recycled plastic reinforced with hemp fibres, according to the listing.

Price

£42.49Save 15%

Reference price: ~~£49.99~~

Price checked: 14 Nov 2026

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Pros and cons

Pros

Mirror sighting supports aligning a reference point while viewing the compass dial.
Three listed map scales and millimetre measuring help with map work across different map scales.
A detachable scale lanyard doubles as a ruler, and the listing describes luminous markings for low-light navigation.
Recycled plastic reinforced with hemp fibres is used for the lid and graduation ring.

Technical specifications

9 specifications

Identity
Brand	Silva
Model	38243

Navigation features
Map scales	1:50k, 1:25k, 1:24k
Map scale field	1:6700
Listed special features	Glow In The Dark, Rotating Bezel

Dimensions and installation
Mounting type listed	Tabletop Mount
Dimensions listed	12L x 10W centimetres
Weight listed	95 Grams

Materials and components
Material listed	Recycled plastics with hemp fibers

What to know before buying

Listing details to confirm

The listing gives a separate map-scale field of 1:6700, which does not match the stated map scales of 1:50k, 1:25k and 1:24k. Confirm which scale information applies before purchase. Its dimensions are also presented with a tabletop mounting label despite being a handheld compass, so treat those details as listing entries rather than evidence of an installation requirement.

What’s in the box

Included

Cardboard made from recycled cardboard

Who is it for?

A good fit for

Experienced hikers and map users who want a mirror sighting compass and multiple map scales.
Buyers who want a detachable ruler lanyard and luminous markings for low-light use.

Less suited to

Buyers who need clearly confirmed dimensional or map-scale specifications without resolving the listing inconsistencies.

Silva Terra Expedition S Mirror Compass, model 38243 · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.3 / 5 · 28 ratings

5 stars68%68%
4 stars13%13%
3 stars8%8%
2 stars5%5%
1 star6%6%

Aggregate customer ratings lean positive, with most ratings in the top category, but the distribution also includes lower ratings. Without written feedback, the figures do not explain what buyers liked or disliked. They offer limited guidance on performance, so buyers should assess the compass against its sighting and map-reading features and resolve the listing's scale discrepancy.

Frequently asked questions

What map scales does the Terra Expedition S list?

The title and feature details give 1:50k, 1:25k and 1:24k. A separate map-scale field says 1:6700, so check the listing details before relying on that figure.

What is the mirror used for?

The listing describes viewing the compass dial and the background together while aligning a reference point, with an additional 45-degree sighting aid.

Does it include a ruler?

A detachable scale lanyard is described as working like a ruler. The supplied contents list names recycled cardboard packaging only, so confirm the selected listing's package details if the lanyard is essential.