Material is only part of an object's identity
Royal Museums Greenwich holds a ladder model made from wooden pieces, metal fittings and rope lashings; its catalogue lists hemp among the materials. The object is identified as SLR2498 and dated to a broad period in the nineteenth century. This record allows us to study a combination of materials, rather than merely point out the presence of a plant fibre.
The word model matters too. This is not a full-sized ladder supposedly used in a particular scene. Forgetting that classification would change the story. In a museum, the type of object can be as important as its material: a sample, replica, tool, model and working object raise different questions.
A broad date range is still information
If a catalogue gives a range, narrowing it to one year for a more appealing headline introduces precision the source does not contain. The same applies to attributions. Expressions such as possibly or associated with are not weaknesses to be corrected: they communicate the available degree of certainty. Keeping them helps readers understand how a collection works.
You can turn this into a small exercise during a visit. Find one label with an exact date and another with a range, then ask what kind of evidence might explain the difference. You do not need to guess the answer. The point is to notice that cataloguing is not merely about naming things, but about organising information with different levels of confidence.
Provenance tells another story
Who made an object, who used it and how it entered a collection are separate questions. Sometimes one answer is known and the others are not. A documented donation does not automatically identify the craftsperson, just as a mark on an object does not explain its whole journey. Its history of preservation also belongs to the object.
Its present location deserves the same attention. A published record does not mean that the piece is on display. The catalogue entry for the model discussed here says it is not exhibited. If you are planning a visit around a particular object, check with the institution. The digital museum and the physical gallery offer different, complementary experiences.
Looking without assuming a right to reuse
Photographs from collections may have specific reproduction conditions. Before using them on a website or in a design, consult the relevant licence. Linking to a record already lets you share a discovery while preserving its context. A magazine can build a rich visual story while respecting the distinction between looking at, citing and reusing an image.
Take this with you
Read object type, material, date, provenance and display status as separate pieces of information.
Sources you can open
The source may be in its original language. English publication does not change the jurisdiction or date discussed.
Follow the thread
Open the cannabinoid encyclopedia
Check the identity, research, uncertainties and documented forms of each compound.